.relation {

    width: 96%;
    margin: 20px;
    .tag_table {
      width: 97%;
      margin: 15px;
    }
   
    .metal_color {
      color: #8592a6;
    }
  
  }
.buttom_box{
 margin: 20px;
  padding-bottom: 100px;
    padding-left: 140px;
    padding-top: 10px;
}
  .handle{
       cursor:move;
       font-size: 16px;
    }

      .el-alert{
    margin-bottom: 10px;
  }
   .x-line {
      margin-top: 5px;
      padding-right: 30px;
    }
    
    .class-relation{
      min-height: 500px;
    }